Welcome Guest! If you are already a member of the BMW MOA, please log in to the forum in the upper right hand corner of this page. Check "Remember Me?" if you wish to stay logged in.

We hope you enjoy the excellent technical knowledge, event information and discussions that the BMWMOA forum provides.
Why not take the time to join the club, so you can enjoy posting on
the forum, the club magazine, and all of the discounts and benefits the BMWMOA offers?Want to read the MOA monthly magazine for free? Take a 3-month test ride of the magazine; check here for details.

If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You will need to join the MOA before you can post: click this register link to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.

NOTE. Some content will be hidden from you. If you want to view all content, you must register for the forum if you are not a member, or if a member, you must be logged in.

The front turn signals are incorrect for is bike. You have the older aluminum bodied style which were on the '70 to '74 models (and a few early '75 models). The good news is that the aluminum turn signals are NLA (repos are) and you could easily sell/trade them for the black plastic ones (still available from BMW) and pocket the difference.

It does seem like something bad happened to it in the past, enough to damage the tank, seat, and a few other minor things. Don't let it bother you, there are lots of "muts" on the road.

I can't make out what seat that is, but didn't the "S" have a cowling around the rear of the seat like the RS and RT?

It's a great looking bike

I think you got a sweet looking machine, a great airhead, congrats on your first airhead it's a great adventure. Your gonna have a blast if you love tinkering and playing around with machines they are the ones to have, congratulations on the acquisition. Enjoy

You've got disc brakes all around --duals in the front (good thing) and a really comfortable seat -- more useful for packing a companion
than the origional S seat.(and less prone to scratching the paint when you strap a big bag to it)...and low bars and proper bags. If it runs and handles...it's a treasure. The only BMW's that look like they came from the factory are entered in Concours events. If you have problems....this is the place for answers. If you don't...head directly to "Campfire" and the jokes...

The front turn signals are incorrect for is bike. You have the older aluminum bodied style which were on the '70 to '74 models (and a few early '75 models). The good news is that the aluminum turn signals are NLA (repos are) and you could easily sell/trade them for the black plastic ones (still available from BMW) and pocket the difference.

It does seem like something bad happened to it in the past, enough to damage the tank, seat, and a few other minor things. Don't let it bother you, there are lots of "muts" on the road.

I can't make out what seat that is, but didn't the "S" have a cowling around the rear of the seat like the RS and RT?

You guys have sharp eyes, and are validating my same suspicions. The bike didn't look like any other S models of that era I had seen, although the VIN (frame & engine) does check as a '78 R100S (really, that means '77, right?). The tank does look /6, although I've since seen other S bikes w/same tank. Although it didn't come w/the S-fairing (anyone have one for sale?), there are still mounts on the fork for one. And I would have preferred the rear cowling. It is a mutt, for sure and I agree something not so good probably happened to it. When I raised these questions with my local Airheads group, the consensus was a resounding, "meh".

WRT to the important issue - how does it run? Well, its been cold here so I've only had it out a half-dozen times since purchase, but I'd have to say pretty sweet. It vibrates more than I expected and my clutch and shifting have room for improvement. Takes a bit longer to warm up than I do, and always seems at its best just when put away.

I've since attended a tech day strip-down of a R90/6 and am now looking for a restoration project of my own. I gots the airhead bug bite, bad.

Europe sees bikes one year early, and year of manufacture is usully year previous to listed year. '78 was first year with hinged shifter set up, '77 and earlier had one-piece shifter; yours has the hinged one. its been thru a crash, and then re-done,,, but does appear to be a 1978.